# A tibble: 2,800 × 29
SID gender education age A1 A2 A3 A4 A5 C1 C2 C3
<chr> <int> <chr> <int> <int> <int> <int> <int> <int> <int> <int> <int>
1 1 1 <NA> 16 2 4 3 4 4 2 3 3
2 2 2 <NA> 18 2 4 5 2 5 5 4 4
3 3 2 <NA> 17 5 4 5 4 4 4 5 4
4 4 2 <NA> 17 4 4 6 5 5 4 4 3
5 5 1 <NA> 17 2 3 3 4 5 4 4 5
6 6 2 Some Coll… 21 6 6 5 6 5 6 6 6
7 7 1 <NA> 18 2 5 5 3 5 5 4 4
8 8 1 HS 19 4 3 1 5 1 3 2 4
9 9 1 Below HS 19 4 3 6 3 3 6 6 3
10 10 2 <NA> 17 2 5 6 6 5 6 5 6
# ℹ 2,790 more rows
# ℹ 17 more variables: C4 <int>, C5 <int>, E1 <int>, E2 <int>, E3 <int>,
# E4 <int>, E5 <int>, N1 <int>, N2 <int>, N3 <int>, N4 <int>, N5 <int>,
# O1 <int>, O2 <int>, O3 <int>, O4 <int>, O5 <int>